Machine for operating upon shoe-soles.



F. CHATEAUNEUF.

MACHINE FOR OPERATING UPON SHOE S OLES.

APPLICATION FILED MAY 26, I913- Patented Feb. 13, 1917.

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APPLICATION FILED MAY 26, 1913- Patented Feb. 13, 1917.

6 SHEETS-SHEET 2 F. CHATEAUNEUF.

MACHINE FOR OPERATING UPON SHOE SOLES.

APPLICATION FILED MAY 26' I913.

Patented Feb. 13, 1917.

6 SHEETSSHEET 3.

m: NONRIS PETERS m. mwmwma, wasmucmm v r F. CHATEAUNEUF. MACHINE FOROPERATING UPON SHOE SOLES.

APPLICATION FILED MAY 26, 1913- Patented Feb. 13, 1917.

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MACHINE FOR OPERATING UPON SHOE SOLES.

APPLICATION men MAYZB, 191s. I Patented Feb. 13, 1917.

6 SHEETS-SHEET 5.

F. CHATEAUNEUF.

MACHINE FOR OPERATING UPON SHOE SOLES.

APPLICATION FILED mum-19m.

1,16,072. Patented Feb.13,1917.

6 SHEETSSHEET 6.

FRANK CHATEAUNEUF, OF HAVERHILL, MASSACHUSETTS, ASSIGNOR TO UNITED SHOETEACHINERY COMPANY,

JEBSEYD OF PATERSON, NEVT JERSEY, A CORPORATION OF NEW MACHINE FortOPERATING nrolv SHOE-SOLZES.

Application filed May 26,

To all whom it may concern:

Be it known that I, FRANK CHATEAUNEUF, a citizen of the United States,residing at l-iaverhill, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements inMachines for @perating Upon Shoe-Soles; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The present invention relates to machines for operating upon shoe soles,and more particularly to a machine for shouldering the edges of shoesoles, especially turn shoe soles.

One obJect of the invention is to produce 7 a machine having a pluralityof shouldering knives and having mechanism for present ing the knives tothe work so as to out shoulders of different form along different partsof the edge of the sole. Another object of the invention is to providethe machine with improved mechanism for withdrawing the channeling knifefrom the sole. Another object of the present invention is to provide themachine with sliouldering knives to form an undercut shoulder againstwhich the upper is sewed. Other objects of the inven tion are to improvethe construction of machines for operating upon shoe soles in certainparticulars which are hereinafter de scribed and claimed, and theadvantages of which will be apparent to those skilled in the ar from thefollowing description.

With the above objects in view, the present invention consists in themachine for operating upon shoe soles hereinafter described andparticularly pointed out in the claims.

In the drawings, which illustrate the preferred embodiment of thepresent invention, Figure 1 is a front elevation of the head of themachine; Fig. 2 is an elevation of the left side of the machine head;Fig. 3 is a plan view of the machine head; Figs. l, 5 and 6 are a planview, a front elevation, and a side elevation, respectively, of aportion of the machine head, all taken at a slight angle to thehorizontal, and illustrating on an enlarged scale, the channeling knife,presser feet, and one of the shouldering knives; Fig. 7 is a section onthe line 77 ofFig. 1; Figs. 8 and 9 are cross sections,

Specification of Letters Patent.

.ertion control the feed of the work.

Patented Feb. 13, 1917..

1913. Serial No. 769,879.

taken through the fore part and shank re spectively, of a turn shoesole, shouldered. and channeled by the machine; and Fig. 10 is a frontelevation of the base of the pedes- 'tal showing the treadles.

in the illustrated embodiment of the present invention, the shoe sole 1,which is to be operated upon, is supported upon a rotary work table 2which is power driven, at a speed controlled by the operator, to feedthe work to the shouldering and chan neling knives. The upper face ofthe work table 2 is either roughened or provided with an abrasive facingto insure a good grip on the grain surface of the sole to feed it. Thework table 2 is carried upon the upper end of a shaft 3 which isslightly inclined to the vertical and is journaled in a projection l onthe head of the machine. The work table 2 is slightly inclined to thehorizontal so that the sole is supported upon the part of the work tablenext the shouldering and channeling knives. The work table 2 and shaft 3are rotated by means of a bevel gear 10 on the lower end of the shaft 3which meshes with a bevel gear 11 on a shaft 12 which is driven throughthe bevel gears 13 and 14 from a horizontal shaft 15. Upon the end ofthe shaft 15 is mounted a clutch 20 which is controlled by means of thehandoperated crank 21. The clutch 20comprises a plate 22 fast upon theshaft 15 and a pulley 23 which is loose on the shaft and which is drivenat a constant speed by means of a belt 2%. The clutch 20 is soconstructed that when the crank 21 is turned forward by the operator bymeans of the handle 25, the shaft 15 will be power driven at exactly thesame speed that the crank 21 is turned. The operator in turning thecrank 21 does not supply the power for turning the work table 2, butthrough the clutch 20 controls the speed at which the table 2 is powerdriven. The operator can thus without ex- The clutch 20 forms no part ofthe present invention and therefore its details of construction are notdescribed. Clutches having a similar construction and mode of operationare shown in the patents to Sta-ubon, No. 500,438, June 27, 1893, andlVinter, No. 981,345, January 10, 1911.

In order to shoulder the edges of shoe soles, rotary shouldering knives30 and 31 are provided. These knives cut on the edge of the sole theshoulder against which the upper is sewed. In making a shoe sole, andmore particularly a sole for a turn shoe, it is quite generallydesirable to leave the edge of the sole around the fore part of nearlythe same thickness as the sole, and to bevel the sole to a thin edgealong the shank. This can readily be done with the two illustratedshouldering knives 30 and 31. The shouldering knife 30 cuts obliquelydownward into the leather and leaves the thick edge which is desiredaround the fore part, while the knife 31 forms the thin beveled edgewhich is desired along the shank. In order that the knives 30 and 31 mayoperate along the fore part and around the shank respectively, they aremounted so that either one may be brought into operative position at thewill of the operator. In operating upon turn shoe soles and particularlyupon soles for spring heel shoes, it is often desirable to channel theheel without shouldering the edge of the heel. The shouldering knivesare, therefore, mounted so as to be both withdrawn from the work topermit the channeling knife to operate alone around the heel.

The knives 30 and 31 have upon their peripheries sharp work cuttingblades or teeth 32. The knives 30 and 31 are mounted upon the ends ofthe knife carrying spindles 33 and 3st respectively. These spindles aredriven by a belt 35 which passes around driving pulleys 3G and 37carried by the spindles 33 and 3 1 respectively. The belt 35 is drivenfrom a pulley 10 loosely mounted on a shaft 411 at the right and belowthe head of the machine. The pulley 10 is driven by a second pulley 16which is formed integrally with the pulley 10 and which is, in turn,driven by a belt 13 coming from a pulley (not shown) at the base of themachine. The pulley 1 1 which drives the belt 2st is also mounted uponthe shaft 4L1 and is driven from a pulley l7 which is formed integrallywith the pulley as and which, in turn, is driven by the belt 15 comingfrom a pulley (not shown) at the base of the machine. The speed of thebelts 13 and 4:5 and the comparative size of the pulleys 40 and 4% issuch that the belt 35 is driven much faster than the belt 2 1, so thatthe knives 30 and 31 rotate very rapidly in comparison to the speed offeeding the work by the rotary work table 2. The pulleys 10 and 4 1 aredriven in opposite directions, the direction of movement of the beltsbeing indicated by arrows in Fig. 1. As is evident from the direction ofmovement of the belts, the edges of the shouldering knives 30 and 31which engage the sole move in an opposite direction to the feed of thesole, and out against the feed of the work.

The knife carrying spindles 33 and 34: are carried respectively byslides 50 and 51.

The slides 50 and 51 are mounted to reciprocate at an angle to eachother so that the paths in which the knives 30 and 31 are bodily movedto and from the work intersect at the edge of the sole. When the knife30 is advanced, the knife 31 is retracted horizontally to the right.When the knife 31 is advanced, the knife 30 is retracted to the rightand upwardly out of the path of the knife 31. The slides 50 and 51 aredovetailed, as shown in Fig. 7, and are slidably mounted in slides 52and 53 respectively, which are dove-tailed in the machine frame andwhich may be adjusted vertically by means of adjusting screws 5 1 and 55respectively. The screw 54 is threaded in a pin 56 which extends fromthe vertical slide 52 through a hole 57 in the machine frame, and isprovided with a capstan head 58 which is received in a slotted plate 59screwed to the frame of the machine. The screw 5 1 affords a niceadjustment for vertically positioning the knife 30 relatively to thework table 2 so that the thicknessof the edge or feather at the marginof the sole may be varied. The adjusting screw 55 is similarly threadedin a pin 60 projecting from the slide 53 to provide a nice verticaladjustment for the knife 31. A stop screw 61 is threaded in the end ofthe slide 50. The head of the screw 61 contacts with an abutment on thevertical slide 52 and limits the movement of the slide 50 to the left.The screw 61 thus provides a nice adjustment for varying the position towhich the shouldering knife 30 is advanced over the work table 2. A lockscrew 62 is threaded in the slide 50 beside the adjusting screw 61. Thehead of the lock screw 62 is forced against the top of the head of theadjusting screw 61 and thus securely holds it from becoming loosened.The movement of the slide 51 to the left is limited by means of a stopscrew 63 threaded in the machine frame, and locked in adjusted positionby a lock nut (31. The adjustable stop screw 63 thus furnishes a niceadjustment to vary the distance that the shouldering knife 31 isadvanced over the work table 2. It is to be noted that the belt 35 islead to and from the pulleys 36 and 37 in a direction parallel to thedirection of movement of the slides 50 and 51. Therefore, when one slideis advanced, the extra length of belting required for its pulley will begiven up by the pulley on the other slide which is retractedsimultaneously with the advance of the first slide. A belt tightener 65keeps the belt 35 at the proper tension.

In order that the knife carrying slides 50 and 51 may be reciprocated toalternately resent the knives 30 and 31 to the work at the will of theoperator, or to withdraw both of the knives from the work, the slides 50and 51 are connected to a rock shaft which is journaled in the machineframe and Whichis rocked by meansof a treadle 69 at the base of themachine. On the rear end of the rock shaft- 70 is pinned a hub 71 fromwhich project two arms 72 and 73. In the ends of the arms 72 and 73 areslidingly mounted pins 74 and 75 which normally project forwardly fromthe arms 72 and 73. The pins are provided with handles 76 which may begrasped to slidingly move the pins. In each of the pins areround-bottomed annular grooves 77 and 78 which are engaged by aspring-pressed plunger 79 which holds the pin either advanced orretracted. A lever 80 is loosely mounted on the rock shaft 70 and hastwo arms 81 and 82. The arm 81 is approximately parallel with the arm 72and has at its end a circular hole in which the projecting end of thepin 74 fits. The arm 82 is longer and more nearly vertical than the arm81 and carries at its. end a pin 83 which is engaged in a slot 84 on theslide 50. The motion of the rock shaft 70 is transmitted by the lever 72through the connecting pin 74 to the arm 81 of the lever 80, and fromtheother arm 82 of the lever 80 through the pin 83 and slot 84 connectionto the slide 50. A second lever 85 is loosely mounted on the shaft 70and has two arms, one of which 86 extends parallel with the arm 73, theother of which 87 eX- tends downwardly. The end of the arm 86 hasthrough it a hole for receiving the pin 75 which is carried upon the endof the arm 73. The downwardly extending arm 87 bears a pin 88 which isreceived in a slot 89 in the slide 51. The motion of the rock shaft 70is transmitted by the arm 73 through the'pin 75. to the arm 86 of thelever 85, and from the arm 87 ofthe lever 85 through the pin 88 and slot89 connection to the slide 51. These connections are such that when theshaft 70 is rocked in one direction, one slide is advanced to pre sentits shouldering knife to the work, and the other slide is simultaneouslyretracted from the work. Either of the slides50 and 51 can bedisconnected from the rock shaft 70 at any time by pulling out the pins74 and 75 to disconnect the arms 72 and 73 from the arms 81 and 86respectively. The slides are thus disconnected when it is desired toremove or replace one of the shouldering knives. When one of theshouldering knives is to be removed, the slide carrying the other knifeis disconnected and retracted to the right to permit the first knife tobe removed from its carrying spindle.

On the forward end of the rock shaft 70 is fixed a hub upon the front ofwhich is screwed a plate 101. The plate 101 has a curved slot 102through which is received a square-headed bolt 103. The slot 102 iscountersunk at the back of the plate to leave square shoulders whichhold the square head of the bolt from rotation. The bolt 103 issurrounded by a sleeve 104 against the end of which bears a wing nut 105which is threaded on the end of the bolt 103. The wing nut 105, actingthrough the sleeve 104, clamps the bolt tightly in place. The bolt canthus be shifted to either end of the'slot 102 and clamped there. Atreadle rod 106, which is drawn downward by the treadle 69, has an eyeat its upper end which fits loosely over the sleeve 104.- on the bolt103. An extension spring 107 is connected between an adjustable screw108 at the top of the machine head and a plate 109 which is looselycarried on the sleeve 104. The spring 107 normally holds the treadle rod106 elevated and through the rock shaft 70 holds one of the shoulderingknives 30 and 31 in operative position. With the parts in the positionsillustrated in the drawings, the treadle 69 and treadle rod 106 areelevated by the spring 107 and the shouldering knife 30 is presented inoperative position, but when the treadle is depressed to its fullextent, the shoulder ing knife 30 will be retracted and the shoulderingknife 31 brought into-operative position. As above pointed out, the bolt103 can be shifted to either end of the slot 102 so that either one ofthe knives 30 and 31 is normally advanced. When the machine is to beused, the bolt 1-03 is shifted in the slot 102 to present which is to befirst brought into operation to shoulder the sole. The treadle 69 isswiveled so that it can be thrown either to the right or left by thefoot of the operator. Downwardly facing retaining shoulders 111 and 112are provided at the right and left of the treadle arm for holding thetreadle fully or half depressed. The operator, by swinging the treadleto the right, can bring it beneath the shoulder 111 and so lock one ofthe shouldering knives advanced against the tension of the spring 107.When the treadle is half depressed, one shouldering knife will be halfretracted, and the other shouldering knife neither of the shoulderingknives will be in operative position. The operator, by swinging thetreadle 69 to the left, can lock the treadle against the force of thespring 107 in its half depressed position with both of the knivesretracted into inoperative position. F or example, if the heel of thesole is to be channeled, but not shouldered, the treadle 69 ispositioned under the.

112 to free the work of both shouli shoulder dering knives.

The stitch-receiving channel in the sole is cut by means of a channelingknife 120. The channeling knife is mounted in a knife carrier 121. Theknife carrier 121 is pivthe shouldering knife half advanced, and

otally mounted upon a support 123 which, in turn, is pivotally mountedupon the machine frame. The knife carrier 121 is pivotally mounted uponthe support 123 by means of a stud 122 which projects from the 'knifecarrier 121 and is j ournaled in the support 123. The end of the stud122 is threaded to receive a holding nut 124. The support 123 ispivotally mounted upon the machine frame by means of a shaft 119 whichis journaled in the machine frame and upon which the support 123 issecured by means of a pin 118. The knife 120 extends substantiallytangential to circles struck about the axis of the stud 122 and the axisof the shaft 119 which form the pivotal mountings of the knife carrier121 and the support 123 respectively, so that not only is the knife 120rapidly reciprocated longitudinally to cut the channel in the soleduring the operation of the machine, but is withdrawn longitudinallyfrom the channel when the knife carrier support 123 is raised by theoperator to free the knife from the channel.

The support 123 is turned about the axis of its mounting shaft 119 bymeans of a lever which is secured by means of the pin 151 to the end ofthe shaft 119. The lever 150 is turned by means of a treadle rod 152which can be drawn down by the operator by means of a treadle 158 at thebase of the machine. A spring 153 is connected between the left hand endof the lever 150 and an adjusting screw eye 15 1 on the machine frameand acts to turn the lever 150 to yieldingly hold the presser feet 1410against the work. Adjusting stop screws and 156 limit the movement ofthe lever 150 under the action of the spring 153 and the treadle 158,and through the connecting shaft 119 limit the movement of the presserfoot toward and from the work table 2. The knife 120 is adjustably heldin a knife-receiving groove in the end of the knife carrier 121 by meansof a clan'iping screw 125. A short and rapid longitudinal reciprocatorymovement is imparted to the knife 120 so that it easily cuts the channelas the sole is fed past it. In order to reciprocate the channelingknife, a reciprocating link 126 is pivotally connected at 127 to theupwardly extending arm 128 of the knife carrier 121. The pivotalconnection 127 is ap proximately concentric with the shaft 119 by meansof which the support 123 is mounted on the machine frame, so that whenthe knife carrier support 123 is raised by the operator, the arm 12Sturns idly about its pivotal connection 127 so as not to interfere withthe movement of the knife carrier support 123. The other end of the link126 surrounds an eccentric 129 on a horizontal shaft 130. The shaft 130has a pulley wheel 131 over which passes the rapidly running belt 35.The reciprocatory motion imparted to the link 126 by the eccentric 129oscillates the knife carrier 121 and-reciprocates the knife 120.

The depth of the cut of the channeling knife may be varied by means of apresser foot 1 10 which bears upon the sole in advance of the knife 120."The presser foot 110 is clamped on the front of the support 123 bymeans of a clamping screw 111 threaded in the presser foot 140 andpassing through a slot 11-2 in the support 123. An adjustable screw 1 13having a flanged head engaging a notch in the top of the presser foot110 affords means for vertically adjusting the presser foot.

The edge of the sole is held against the work table 2 by means of ayieldingly mounted roll and a second presser foot 161. The roll 160bears against the between substance in about the same position along theline of feed as the shouldering and channeling knives, and the presserfoot 161 engages the edge in advance of the shouldering knives. The roll160 is mounted in a rearward projection on the lower end of a slide 162which is slidably mounted on the machine frame. The presser foot 161 isformed by the off set lower end of a slide 163 which is in turn slidablymounted on the slide 162. The presser foot 161 is yieldingly heldagainst the work by means of a spring 161 connected to a pin 165 on theslide 163 and a pin 166 on the slide 162. An adjusting screw 167 limitsthe movement of the presser foot 161 under the action of the spring16 1. The slide 162 which carries the roll 160 is drawn toward the workby means of a spring 17 6 which is connected between an adjustable screweye 171 carried uponthe upper end of the slide 162 and a pin 172 uponthe machine frame. The movement ofthe slide 162 under the action of itssprin is limited by means of a stop screw 143 carried by the slide 162and engages the machine frame. The slide 162 is lifted to raise the roll160 by means of the treadle-operated lever 150, the end of which engagesthe projection 17 a extending from the top of the slide 162. When thetreadle is depressed to raise the presser foot 140 and channeling knife120, the lever 150 engages the projection 17 d and raises the slide 162which carries the roll 160. The adjusting screw 167 which is carried bythe slide 163 is engaged by the raised slide 162 so that the presserfoot 161 is also lifted when the treadle is depressed. When the treadle158 is depressed, the channeling knife 120 is withdrawn and the presserfoot 1&10 raised, then the roll 160 is lifted, and lastly, the presserfoot 161 is lifted.

The sole is positioned laterally on the wor: table by means of an edgegage which projects over the edge of the work table. The edge gage 180is mounted on the end of a bell crank lever 181 pivotally mounted at 182on the machine frame. The edge gage is yieldingly held in position bymeans of a spring 188 which is connected between the horizontal arm ofthe bell crank lever and the machine frame. The edge gage can be movedto the right against the force of the spring 188 by means of a treadlerod 184: connected to the horizontal arm of the bell crank lever andadapted to be depressed by a treadle 187 at the base of the machineframe. Adjusting screws 185 and 186 limit the movement of the edge gageunder the action of the spring 183 and the treadle 187. The edge gage isnormally positioned, as illustrated in Fig. 1, so that the channelingand shouldering knives operate a predetermined distance from the edge ofthe sole. It is sometimes desirable to have the channel farther in fromthe edge of the sole, as, for example, along the outside of the forepart to form an extension edge, around the toe when a heavy toe counteris to be used, or around the heel for a spring heel shoe. When it isdesired to have the channeling and shouldering knives operate fartherfrom the edge of the sole, the treadle 187 is depressed, moving the edgegage 180 to the right so that the channeling and shouldering knives mayoperate farther in from the edge of the sole. While the machine of thepresentinvention can be used for shouldering insoles for welt shoes, itis, nevertheless, particularly adapted for operating upon turn shoesoles. The operation of the ma chine will be explained by describing itsoperation upon a turn shoe sole, the fore part of which is to have athick edge and the shank a thin edge, and the heel of which is tobechanneled but not shouldered. The treadle 158 is depressed to raise thechanneling knife and presser feet and the sole is placed upon the worktable with the portion of the shank next the heel presented to theknives. The operator depresses the treadle 69 half way, and throws itunder the locking shoulder 112 to hold both of the shouldering knives 30and 81 out of engagement with the sole. The operator turns the crank21;to feed the sole and cause the channeling knife 120 to channel theheel. If the operator desires to have the channel around the heellocated farther in from the margin than it is located around the rest ofthe sole, he depresses the treadle 187 to retract the edge gage 180 andpermit the sole to be positioned farther to the right beneath thechanneling knife 120 while the channeling knife is operating around theheel. After the heel is channeled and the shank is reached, the operatordepresses the treadle 69 to bring the shouldering knife 31 intooperative position. The shouldering knife 31 and the channeling knifeoperate along the shank until the fore part is reached, whereupon theoperator releases the treadle 69 and permits the shouldering knife 30 tocome into operative position. The shouldering knife 80 and thechanneling knife operate around the fore part until the opposite side ofthe shank is reached, whereupon the operator again depresses the treadle69 to bring the shouldering knife 31 against the shank. Vhen thestarting point is reached, the operator stops turning the crank 21 anddepresses the treadle 158 to free the work of the presser feet andchanneling knife, and the finished sole is removed.

Cross sections of the fore part and shank of a turn shoe sole preparedby the illustrated machine are shown in Figs. 8 and 9. The channelingknife 120 cuts a channel 200 in the flesh side of the sole openinginwardly or toward the middle of the sole to receive the line ofstitches which pass through the between substance 201 and unite the soleand upper. On the outer side of the between substance is the outwardlyfacing shoulder 202 against which the shoe upper is sewed. This shoulderis undercut at its base with a round-bottomed groove 208 opposite thebottom of the channel 200, leaving an overhanging tongue 20 at the topof the shoulder. Before the upper is sewed to the sole, the feather 206,which extends outwardly beyond the tongue 2042 to form the margin of thesole, is bent toward the grain side of the sole by means of the soleedge molding machine, so that the groove 208 is spread open to receivethe inseam stitching. The shoe upper and the two-thread side of thechain stitch, which is generally used for the inseam, are drawn by thesetting of the stitches into the groove 208. After the upper is sewed tothe sole and the inseam trimmed and the shoe turned and beaten out, thetongue 20% extends out over the inseamreceiving groove 203 and theinside of the shoe sole is much smoother over the inseam than would bethe case if the shoulder were not undercut. The groove 203 is cut by therounded projections or nibs 205 on the blades of the shouldering knives.Above the pro jections 205, the edges of the blades are straight to cuta straight face on the tongue 204 which forms the overhanging part ofthe shoulder. The straight face on the end of the tongue 204 prevents aragged or irregular tongue edge. Below the projections 205, thecdges ofthe blades are straight for cutting the straight inclined upper face ofthe feather The knife 30, which operates around the fore part, has thestraight feather cutting portion of the blades inclined down wardly tothe sole, so that, as shown in Fig.

8, the upper face of the feather 206 extends outwardly in a directioninclined upwardly or away from the grain side of the sole and the edgeor margin of the sole is approximately as thick as the sole. The knife31, which operates along the shank, has the est straight feather cuttingportion of its blades inclined upwardly to the edge of the sole so, asshown in llig. 9, the upper face of the feather 206 extends outwardly ina. direction inclined downwardly or toward the grain side of the soleand the edge or margin of the feather is beveled to a thin edge. Thesole, therefore, has the comparatively thick edge along the fore partand the beveled edge along the shank which conduces to an attractiveappeareuce in the finished shoe.

\Vhile the preferred embodiment of the present invention has beenspecifically illustrated and described, the present invention is notlimited to its preferred embodiment, but may be embodied in otherconstructions within the scope of the invention as set forth in thefollowing claims 1. A machine for shouldering the edges of shoe soleshaving, in combination, means for feeding and guiding the sole, twoshouldering knives for operating along different portions of the soleedge, knife carriers and mechanism connected therewith for normallypresenting one knife in position to operate upon the edge of the sole,and means for withdrawing the first knife and for presenting the secondknife in position to operate upon the edge of the sole.

9 A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two shoulderingknives for operating along different portions of the sole edge, knifecarriers and mechanism connected therewith including a spring fornormally presenting one knife in position to operate on the edge of thesole, and a treadle for moving the knife carriers against the force ofthe spring to withdraw the first knife and present the second knife inposition to operate upon the edge of the sole.

3. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two shoulderingknives for operating along different portions of the sole edge, mountedto bodily reciprocate along inclined paths which intersectat or near theedge of the sole being shouldered, and means for withdrawing one knifefrom the edge of the sole and advancing the other knife into position tooperate upon the edge of the sole.

i. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two rotaryshouldering knives for operating along clifferent portions of the soleedge, knife carrying slides for supporting the shouldering knivestobodily reciprocate along inclined paths which intersect at or near theedge of the sole being shouldered, and means for retracting one knifecarrying slide and simultaneously advancing the other knife carryingslide so as to present the shouldering knives singly and alternately inposition to operate upon the edge of the sole.

5. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two rotaryshouldering knives for operating along different portions of the soleedge, rotary spindles for supporting the knives, driving pulleys mountedon the spindles, carriers in which the spindles are journaled, means forretracting one carrier and simultaneously advancing the other carrier, adriving belt runnin over the pulleys, and pulley wheels for guiding thebelt to the knife spindle pulleys so that the increased length of thebelt required by the advancing spindle pulley is given up by theretracting spindle pulley.

6. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, a plurality ofshouldering knives for operating along different portions of the soleedge, and means for presenting the knives singly in position to operateupon the edge of the sole and for withdrawing all the knives from theedge of the sole.

7. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two shout deringknives, and means for withdrawing one knife from the edge of the soleand advancing the other knife into position to operate npon the edge ofthe sole, said means having provision for holding both knives out ofengagement with the edge of the sole.

8. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two rotaryshouldering knives for operating along different portions of the soleedge, knife carrying slides for supporting the shouldering knives, andmeans for retracting one knife carrying slide and simultaneouslyadvancing the other knife carrying slide so as to present theshouldering knives singly and alternately in position to operate uponthe edge of the sole, said means having provision for arresting theknife carrying slides each in a half-advanced position and out ofcontact with the edge of thesole.

9. A machine for shouldering the edges of shoe soles having, incombination, a table for supporting a flat sole, means for feeding thesole, two shouldering knives for operating along difierent portions ofthe sole edge on the side of the sole opposite the side on the table,and means for alternately resenting the shouldering knives in positionto operate upon different portionsof the sole edge.

10. A machine for shouldering the edges of shoe soles having, incombination, a rotatable table for supporting the sole, means to rotatethe table to feed the sole, a

plurality of shouldering knives for operat-- Cit ing along differentportions of the sole edge, and means for presenting the knives singly inposition to operate upon different portions of the sole edge. i

11. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, a plurality ofshouldering knives for operating along different portions of the soleedge, and means for withdrawing a knife from the sole and simultaneouslyadvancing another knife into position to continue the shoulden ingoperation along the edge of the sole.

12. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two shoulderingknives for operating along different portions of the sole edge, meansfor positioning the shouldering knives having provision for normallypresenting either knife to the sole and manually operable means forwithdrawing this knife and advancing the other knife.

13. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, two shoulderingknives for operating along different portions of the sole edge,mechanism connecting the two knives for causing the knives to move inopposite directions toward and from the work, a spring, means forconnecting the spring to said connecting mechanism so as to cause eitherone of the knives to be normally advanced, and manually operable meansfor withdrawing the normally advanced knife and advancing the otherknife.

1a. A machine for operating upon shoe soles having, in combination,means for feeding and guiding the sole, a channeling knife, a knifecarrier, means acting through the knife carrier to reciprocate the knifelongitudinally to cut a channel in the sole, a support for the knifecarrier having a ,7 p'votal mounting on the machine frame, the

channeling knife extending substantially tangential to an arc struckabout the axis of the pivotal mounting of the support, and manuallyoperable means for turning the support about its pivotal mounting towithdraw the channeling knife longitudinally from the channel cut in thesole.

15. A machine for operating upon shoe soles having, in combination,means for feeding and uiding the sole, a. channeling knife, a pivotallymounted knife carrier, a support upon which the knife carrier ispivotally mounted and which in turn has a pivotal mounting upon themachine frame, the channeling knife extending substantially tangentialto an arc struck about the axis of the pivotal mounting of the support,means for oscillating the knife carrier to longitudinally reciprocatethe knife to cut a channel in the sole having a pivotal connection withthe knife carrier approxiinately concentric with the pivotal mounting ofthe support, and manually operable means for turning the support uponits pivotal mounting to withdraw the channeling knife longitudinallyfrom the channel cut in the sole.

16. A machine for operating upon shoe soles having, in combination,means for feeding and guiding the sole, a channeling knife, a knifecarrier, a support upon which the knife carrier is pivotally mounted andwhich in turn has a pivotal mounting upon the machine frame, thechanneling knife extending substantiallytangential to an arc struckabout the axis of the pivotal mount ing of the support, means foroscillating the knife carrier to longitudinally reciprocate the knife tocut a channel in the sole, and manually operable means for turning thesupport about its pivotal mounting to withdraw the knife longitudinallyfrom the channel cut in the sole.

17. A machine for operating upon shoe soles having, in combination,means for feeding and guiding the sole, a channeling knife, a knifecarrier, a support upon which the knife carrier is pivotally mounted,means for oscillating the knife carrier to reciprocate the knifelongitudinally to cut a channel in the sole, and manually operable meansfor moving the support to bodily move the knife carrier and withdraw theknife longitudinally from the channel cut the sole.

18. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, a rotaryshouldering knife for forming an undercut outw: rdly facing shoulder onthe sole, said rotary knife being mounted on an axis to position theplane of rotation of the knife substantially parallel to or at an acuteangle with the face of the sole, and means for rotating the knife.

19. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, a rotaryshouldering knife for cutting an outwardly facing shoulder against whichthe upper is sewed having a projecting portion for unl dercutting thebase of the outwardly facing shoulder, and means for driving the rotaryknife.

20. A machine for shouldering the edges of shoe soles having, incombination, means for feeding and guiding the sole, a rotaryshouldering knife having a straight edge for cutting the upper part ofan outwardly facing shoulder on the sole, having-a straight edge forcutting a f ather on the margin of the sole, and having a projectingedge at the angle between said straight portions for undercutting thebase of the shoulder, and means for driving the rotary knife.

21. A machine for shouldering the edges of shoe soles having incombination, means for feeding and guiding the sole, a plurality ofindependently mounted shouldering knives for operating along differentportions of the sole edge, a channeling knife for cutting a channelopposite the shoulder knife cut, and means under the control of theoperator for normally presenting a shoulder knife in position to operateupon the edge of the sole and for Withdrawing such knife and presentinganother shoulder knife in position to operate upon a different portionof the edge of the sole.

22. A machine for shouldering the edges of shoe soles having, incombination, means 5 for feeding and guiding the sole, and a shoulderingknife having a straight edge for cutting the upper part of an outwardlyfacing shoulder on the sole having a straight edge for cutting a featheron the margin of the sole and having a projecting nib at the anglebetween said straight edges for cutting a groove at the base of theshoulder.

FRANK CHATEAUNEUF.

Witnesses:

GEO. E. STEBBINS; MIRIAM CLEMENT,

Copies of this patent may be obtained for five cents each, by addressingthe 'Uommissioner of Patents, Washington, I). G.

Gorrection in Letters Patent No. 1,216,072.

It is hereby certified that in Letters Patent No. 1,216,072, grantedFebruary 13,

1917, upon the application of Frank Chateauneuf, of Haverhill,Massachusetts,

for an improvement in Machines for Operating Upon Shoe-Soles, an errorappears in the printed specification requiring correction as follows:Page 7, line 98,

claim 17, after the Word out insert the word in; and that the saidLetters Patent should be read with this correction therein that the samemay conform to the record of the case in the Patent Office.

I Signed and sealed this 20th day of March, A. D., 1917.

[SEAL] F. W. H. CLAY,

Acting Uommtem'mte? of Patents.

